EricWF added a comment. In https://reviews.llvm.org/D32265#731709, @jfb wrote:
> Is it a goal to support Microsoft's STL with this? If so, how does MSVC's STL > implement `is_always_lock_free` at the moment? CL 19 2017 RTW doesn't seem to > have anything <https://godbolt.org/g/jQOxlu>? Presumably they'll have to do > *something*. The goal is to allow libc++ to implement`ATOMIC_<TYPE>_LOCK_FREE` on Windows using Clang. As you know libc++ currently uses the `__GCC_ATOMIC_FOO` macros, but those aren't available on Windows. Also AFAIK MSVC leaves the implementation of atomics up to the library, not the frontend. So W/E MSVC's STL does it's likely not sane or desirable. https://reviews.llvm.org/D32265 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
